picfink

Responses from picfink

Meter replacement on Pass Labs X250
I will BET that Pass does MORE than just swap in a new meter. I'll wager you also get a good checkout.....any bulging caps, for example, would be changed. Any charred resistor, likewise.You should also get an adjustment....not that bias or any oth... 
Negative feedback Amp=more faithful reproduction?
Ed:Pass does indeed up simpler circuits. His XA.5 and X.5 series apparently have but 2 gain stages. So, in that case would feedback be 'global' or 'local'? Also, Pass amps I see the specs for are about 26db gain...which is on the low side for peop... 
Biamping, yes or no?
Each 'slope' adds 90 degrees of phase chift.....so you ALWAYS get phase changes with a crossover. 6db=90degreees......12db=180degrees and so on.It is even possible to need to wire the mid/tweet out of phase with the woofer if you use a 12 db slope... 
Adcom GFA 555 versus Rotel RMB 1095for stereo
IF the speakers can be biamped? Might shift the balance to using 4 channels of the adcom.....2 per speaker? 
USING SPEAKER TECHNOLOGY TO KICK OPEN DOORS
this sort of thing already exists...in labs.Timing is everything in releasing the capacitor charge. Look up 'Rail Gun'.....It is not 'recoiless' so if you have a couple guys holding the 'ram' when it fires the slug, the ram tube will recoil backwa... 
Mains Out
Trouble is there are NO standards on recorded music. Even within an album you will find absolute phase differences between tracks. You may want to test your ability to hear this before calling it an issue.....Connecting a pair of amps....one drive... 
what dimensions for a 12” sb cr77 subwoofer?
To make best use of the 'book about building speakers', you will need the TS parameters of the driver in question.Online caclulators or quick downloads will guide you to proper dimensions.With good woodworking skills, the TS parameters and some ex... 
Pass Int-150 or Int-30A for PMC Speakers?
The 30a will be about 100x2 in a/b @ 8 and about double that at 4ohms.If you audition the 30 amplifier and the meter doesn't move, the integrated will perform exactly the same way.Keep that in mind as well as listening habits....Do you like it rea...